Richard Branson is officially the first billionaire to take off for space
Branson's Unity-22 flight ushers in an era of space tourism
NASA's Perseverance rover can make oxygen out of Martian air
The goal of putting humans on Mars is now one step closer
A version of this article originally appeared on Science Friday
How the age of Mars rovers began
Perseverance is the fifth rover to land on the Red Planet. NASA scientists remember Mars Pathfinder’s Sojourner—the 90s experimental endeavor that started it all
The Perseverance rover sends back the first photos and sounds from Mars
The rover's landing was captured in an incredible video
Your brain rewards you when you explore new places
A new study used questionnaires and MRI scans to get to the heart of a similarity with rat brains
Four facts about Marie Tharp, the woman whose art mapped the bottom of the sea
She discovered the Earth's 'backbone' even though men wouldn't let her on a ship for 17 years